Hello friends
How can I get photoCached?
I want to have a preview of the pictures before downloading.
pishnok
All 3 comments
Perhaps these are the tasks of the library.
https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1get_file.html
https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1file_type_photo.html
https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1get_file_extension.html
https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1get_file_mime_type.html
https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1delete_file.html
Let's wait for professionals.
isopen
on 16 Apr 2018
Each photo has a lot of sizes. You need to call downloadFile for the smallest photo size if you want to guarantee that it is available. In most cases for photos this request succeeds immediately without any network request and you receive information about downloaded file through updateFile.
levlam
on 16 Apr 2018
I agree with Leo. This is a library task and it is wrapped in a common file uploading mechanism.
isopen
on 16 Apr 2018
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Most helpful comment
Each photo has a lot of sizes. You need to call downloadFile for the smallest photo size if you want to guarantee that it is available. In most cases for photos this request succeeds immediately without any network request and you receive information about downloaded file through updateFile.